Saw-filing machine



(No Model.) 2 Sheets-Sheet 1. I. EDGE. SAW FILING MACHINE.

No. 454,011. Patented June 9,1891.

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(No Model.) 2 Sheets-Sheet, 2.

F. EDGE. SAW FILING MACHINE.

No. 454,011. Patented June 9,1891.

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1Z5 Aaubzw M ATTORNEY,

I UNITED STATES PATENT LOEEICE.

FRANK EDGE, OF GRAND RAPIDS, MICHIGAN.

SAW-FILING MACHINE.

SPECIFICATION forming part of Letters Patent No. 454,011, dated June 9,1891.

Application filed October 2, 1890- Serial No. 366 ,894. (No model.)

To all whom it may concern.

Be it known that I, FRANK EDGE, a citizen of the United States, residingat Grand Rapids, in the countyot' Kent and State of Michigan, haveinvented certain new and useful Improvements in Saw- Filing Machines, ofwhich the following is a specification.

My invention relates to improvements in machines for filing band-saws,jig-saws, &c.; and its objects are, first, to insure the perfeetmovement of the saw-teeth to position for being filed; second, toprovide a saw-filing machine in which the action of the file upon thesaw is perfectly under the control of the operator; third, to provide afilingmaehine in which the file, when being removed from the teeth, willmove at an angle with the line of the saw suflicient to give thenecessary hook to the teeth; fourth, to provide a saw-filin g machine inwhich the saw may be held so that it cannot rise out of the vise whenbeing fed through; fifth, to provide a saw-filing machine in which thedistance of feed may be regulated to the size of the saw-teeth, and,sixth, to provide a connecting-rod for driving the file-carriage thatwill allow the carriage to describe an arc of a circle in rising withoutstraining or twisting it upon its bearings. I attain these results bythe mechanism illustrated in the accompanying drawings, in which- Figure1 is a plan of my machine. Fig. 2 is a section of the base, showing theposition and form of the vise and the saw-support or gage and the leverfor raising the carriage frame. Fig. 3 is a side view of my appliancefor holding the saw in the vise. Fig. 4 is a top view of the same. 1Fig. 5 isaverticalsection of my machine on the line a: a; of Fig. 1,with the driving-wheel cutaway to show the position of the carriagelever and eccentric, and with the end of the connectingrod cut away toshow my manner of forming a flexible joint therein. Fig. 6 is the sameon the line .2 z of Fig. 1, with the drivingpulley cut away to show thecam U. Fig. 7 is a plan of the feed-shaft and a side view of thecam-lever W. Fig. Sis a plan of 'the cross-bar or gage. Fig. 9 is a sideand end view of the collar for supporting the shank end of the file, andFig. 10 is a perspective of the collar and an end view of the screw thatsupports the point of the file.

Similarletters refer to similar parts throughout the several views.

A is the base of the machine. 13 is the frame that supports thefile-carriage.

C is the guide upon which the carriage works. D is the file-carriage.

E is the wrist-pin upon the driving-wheel. E is the connecting-rod. E isthe wrist-pin upon the file-carriage. F is the driving-wheel. G is thedriving-shaft. V G. G are boxes that support the drivingshaft.

G is a lug that supports the carriage-lever. H is the driving-pulley. His the loose pulley. I is the lever that raises the file-carriage frame.

I is the thumb-screw that acts with the carriage-lever for raising andlowering the carriage.

I is the thumb-screw that regulates the downward movement of thecarriage-frame.

I is a standard for the reception of the thumb-screw I 7 J and J are abolt and spring that draw the carriage-frame down.

K is the adjustable jaw of the vise. K is the stationary jaw of thevise. K represents steel linings to the vise-jaws. L is the shaft thatsupports the carriageframe.

M and M are the feed-levers. M is a spring for throwing the feed-leversback.

N is the feed-arms. O is a guide for holding the saw down. P is the armthat supports the saw-suport. p P is a thumb-screw for clamping the sameto the vise.

P is the gage or saw support. Q is a thumb-screw that secures the file.R is a thumb-screw for adjusting the vise. S is a thumb-screw forsecuring the sawguide.

'1 is the ececntric that works the lever I.

T is an anti-friction roller on the lover I.

U is a cam for operating the feed-levers.

V is a collar for supporting the shank of the file.

V is a collar for supporting the point of the file.

W is the shaft that supports the feed-levers.

W is thelever that operates the feed-shaft.

X is the file.

Y is a lever for adjusting the vise.

Z is an anti-friction roller for facilitating the adjustment of thevise.

& is a saw in the vise.

The base A of my filing-machine is made of cast-iron, substantially ofthe form shown in the drawings, and I construct a frame B for thesupport of the file-carriage, the back or lower end of which is securedto the shaft L, which in turn is pivoted to lugs l by means ofscrew-bolts and check-nuts l, and

.for the purpose of carrying this end of the A frame as far as possiblebelow. the top of the vise, I form a concaved depression 1 in thesurface of the bed, so that the shaft lies at least one-half of itsdiameter below the surface of the bed, the object of this be ing to havethe pivot upon which the frame turns far enough below the point ofcontact between the file and the saw that when the frame is thrown up tothe position shown in Fig. 6 it will draw back as it leaves the toothsufficiently to give the tooth the desired hook or incline. To the freeends of the arms of this frame I secure adovetailed way or track C forthe reception and free action of the file-carriage.

The file-carriage D is provided with a dovetailed or other suitablebearing d at each end, that is made to fit closely but freely upon thetrack 0, and has a hollow bearing d 61, one at each end. The back end,or the end that receives the shank end of the file, is provided with aflanged collar with a body of a proper size to receive the shank of thefile. The opposite end of the carriage is provided with a large hollowthumb-screw Q and a small annular collar made to fit into the holethrough the bearing (1'', so that the point of the file may be passedthrough the collar and into the hole in the screw, and the file heldfirmly to place by screwing the thumb-screw solidly against the collarand forcing the file into both collars.

My means of holding the carriage-frame toward the bed consists of a boltJ, which passes through the top of the body at and through thecarriage-frame, and is provided at its upper end with a screw-thread anda thumbnut 7' above the frame, and a spring J below the bed for drawingit down, the tension of the spring being controlled by the use of thethumb-screw My manner of preventing the carriage from dropping too lowconsists of a thumb-screw or bolt 1 which screws through one arm of theframe and projects down to come in contact with the top of a projectingstop I upon the base, and is held in place by means of the check-nut i 1also provide a thumb-screw or bolt 1, that screws through the other armof the frame and projects down to come in contact with the lever I forthe purpose of raising the frame and the file from the saw, as ishereinafter more fully explained, which may be screwed up or down tovary the distance of raising the frame, and may be secured to place inthe desired position by means of the check-nut 11.

The connecting-rod E is attached to the driving-wheel F by means of awrist-pin E and a strap 6, which passes around and works freely upon thepin, and is connected to the rod by means of a pin a, that passesthrough both the strap and the end of the rod to form a flexible jointfor the purpose of allowing the opposite end of the rod-bolt a verticaland a lateral motion sulficient to meet the inclination of the motion ofthe carriage-frame from the perpendicular when moving to and from thevise to carry the file without cramping upon the wrist-pin, and Iprovide against the danger of pounding, either by inserting a box 6 orby making the strap solid and drilling a hole for the wrist-pin. Toconnect the opposite end of the rod with the carriage, I attach asimilar wrist-.pin E to the carriage at d, drill a hole into the end ofthe connecting-rod, and insert a long screw E (see Fig. 5,) which isfitted to turn freely in the rod for the purpose of meeting the twistingmotion that would be exerted upon the rod by the divergence of thecarriage-frame from a parallel line with the face of the driving-wheelwhen receding from and approaching the vise. This screw is provided witha large head fitted to engage with the strap e, to which it is connectedby means of a pin e, which passes through both, and the strap passesaround the pin E upon the carriage and forms a flexible joint, similarto the one between the opposite end of the connecting-rod and thedriving-Wheel.

By constructing the connecting-rod and its several parts in the mannerspecified'I am enabled to meet both the vertical and the lateral motionof the carriage withoutbinding or cramping any of its several bearings.

My appliance for raising and lowering the carriage consists of aneccentric T, attached to the main shaft and the driving-pulley, a leverI, pivotally attached to a lug G2 and provided at one end with an anti-friction roller T, arranged to travel upon the periphery of theeccentric, and at the otherend with a fiat inclined surface 1 and is soarranged that the revolving of the eccentric will cause it to bring thesurface 2' in contact with the end of the regulating-screw I and raisethe carriage-frame to the desired height. The bolt J and the spring J,hereinbefore described, draw the frame down, when the end 5 0E the leveris lowered by revolving the eccentric to bring the opposite side of itsperiphery to bear upon the roller T.

My device for holding the saw consists-of a I vise having an adjustablejaw K, and a stationary jawK, which I usually make of castiron and linewith steel sub-jaws K for the purpose of insuring aperfect and permanentwearing-surface to come in contact with the saw. I provide theadjustable jaw K with lugs 2: with an open space between them for theend of the arm or lever Y, which I pivot to the jaw by means of a bolt7c, which passes through both and continues on through ears or lugs kupon the under side of the base of the machine, as shown in Figs. 5 and6, and pivots the whole to the base, and the arm or lever to the jaw insuch a manner that the jaw may be moved to open and close the vise byraising and lowering the suspended end of the lever; or the lever may bemoved independent of the jaw. I form the lever with adownwardly-projecting arm y and an outwardly-projecting lever, whichlatter terminates with an anti-friction roller Z, designed to travelupon the periphery ofthe driving-Wheel. I make the driving-wheelslightly eccentric, the center of the wheel being at the point fopposite the wrist-pin, while its traveling center is at g, for thepurpose of governing the action of the vise so that it will presssolidly upon the saw during the forward stroke of the file, as shown inFig. 5, and relax its pressure when the driving-wheel is thrown to itsopposite quarter and the carriage is raised, as in the act of drawingthe file back and throwing the feedlever ahead to move the saw along, asshown in Fig. 6, so that the saw may move easily through between thejaws of the vise. The center f of the driving-wheel is set to the opposite side of the center 9 of the shaft from the center t of theeccentric T, so that the carriage will be raised and the file withdrawnsimultaneously with the opening of the jaws of the vise, and vice versa.I regulate the pressure of the jaws of the vise upon the saw by means ofa thumb-screw R, which I screw through the lower end of the adjustablejaw K and against the arm y of the lever.

My device for holding the saw in position consists of a gage P somewhatthinner than the saw-plate, which is provided with bearings p to enterthe slots 13 in the supporting-arm, and is placed between the jaws ofthe vise and held in place by the support P, which is pivoted to thebase upon standards 1), and is provided with arms 1) that project by theends of the vise, as shown in Fig. 2, and terminate with slots 192, forthe reception of the gage P. This support is held in the desiredposition by means of a thumb-screw 0r bolt P, which passes through botharms of the support directly back of the stationary jaw of the viseandscrews into the arm opposite from its head for the purpose ofclamping the arms to the jaw of the vise. This device is for the purposeof holding the saw at the desired height, and to prevent the saw fromrising out of the vise when being fed through I provide a cap 0,havingashaft, an arm 0, at right angles with the shaft, and a cap 0,which projects over and is nearly parallel with the shaft. To use thisdeviceI place the shaft in a hole through the adjustable jaw, with thecap 0 thrown over so as to stand above the vise, as shown in Figs. 1, 2,and 6, and secure it to place by means of a thumb-screw S, that screwsinto the side of the jaw and against the shaft. This cap acts the doublepurpose, first, ofv holding the saw down to place, and, second, of asupport for, the end of the feed-arm N, to prevent it from taking effectupon the wrong tooth when throwing the saw ahead.

My device for feeding the saw ahead consists of a shaft W, which issupported in the bed of the frame in the position indicated in Figs. 1,5, and 6, and is operated by a lever W, which is secured at one end tothe shaft and is provided at the other end with an antifriction rollerw, which travels over the cam U on the driving-pulley II. Near the otherend of the shaft I secure an arm M, provided with a lug n, to which Ipivot a second arm M, both of which project up through the top of thebase, as shown in Fig. 6. The arm M is provided with a lug or lugs 17.at its upper end, to which I pivot the feed-arm N, which projects fromthis point over to the top of the vise in a proper position toengagewith the saw-teeth and throw the saw ahead, as desired. The distancethat the saw is thrown ahead with each stroke of the feed-arm isregulated by the thumb-screw m, which passes through the top of the armM and against the top of the arm M and is secured to place by means ofthe check-nut m. The backward stroke of the feed-arm is regulated by thethumb- .screw m which passes through the lug m and against the arm M andis secured to place by the check-nut m but when the presserbar 0 is usedthis thumb-screw may be dis pensed with, as the end of the feed-armrests upon the bar when drawn back, which renders it impossible for itto engage with the wrong tooth.

To throw the feed-shaft over and the feedarm ahead,I place a cam U onthe side of the driving-pulley in position to act upon the'lever W" whenthe rod E is on the back-stroke, or drawing the file-carriage toward thedriving-wheel, and I throw the feed-arm back, with the spring Msupported by a lug on the lower side of the base and pressing againstthe front side of the arm h I drive the machine with a tight pulley H,and provide a loose pulley H in the usual manner.

The placing of the center of motion of the table-frame at the point Zbelow the surface of the base and raising the top of the viseconsiderably above the surface of the base causes the file to move inthe curve-of the line'y y,

the saw, and the general construction of the machine gives me a shortvise, supports my file at both ends and brings it close to thedriving-wheel, places the regulating-screw I close to the vise, so as toavert the danger of the file-frame trembling when the file is passingover the saw, and the feed-arm always acts upon the tooth to be nextfiled.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is

1. The combination, in a saw-filing machine, of a base, a carriage-framepivoted to the base below the top of the saw-vise, a vise having astationary and an adjustable jaw, a lever pivoted to the adjustable jawand operated by the eccentric driving-wheel, a regulating-screw in theadjustable jaw, a saw-gage and clamping device,a guide, acarriage-track, a file-carriage, file-supportin g collars, aclamping-screw Q, adj listing-screws for the carriageframe, a bolt andspring for drawing the carriage-frame down, a connecting-rod having apivotconnection ateach end, ahead E screwed into the end of theconnecting-rod to form a rotatory joint, straps, wrist-pins, aneccentrically-hung driving-wheel, an eccentric, a lever, a main shaftand driving-pulley, a cam, a lever for driving the feeding mechanism, ashaft, a feed-lever secured to the shaft, an adjustable lever,regulating-screws, a spring M and a feed-arm, substantially as and forthe purpose set forth.

2. The combination, in a saw filing machine, of a base, an automaticvise, a drivingshaft, a driving-wheel and pulleys, an automatic feedmechanism, an eccentric, a lever pivoted to the base, and afile-carriage with a carriage-frame pivoted to the bed in position toraise the carriage at an inclination from the perpendicular, adjusting-screws, a connecting-rod, straps pivotally attached to the rod,and a screw connection E substantially as and for the purpose set forth.

3. The combination, in a saw-filing machine, of a base, a carriage-framepivoted to the base, adjusting-screws and spring, adjusting-lever,eccentric, main shaft, drivingwheel and pulleys, an adjustable vise andlever, with a feed mechanism consisting of a cam, a lever attached tothe feed-shaft and operated by the cam, a feed-shaft, a feed arm orlever, an adjustable feed-lever, a spring for throwing the feedleverback, adj ustingscrews, and a feed-arm, substantially as and for thepurpose set forth.

4. The combination, in a saw filing machine, of a base, a main shaft andpulleys, a feeding mechanism, a carriage-frame, a track, afile-carriage, adjusting-screws and spring, an adjusting-lever, andeccentrics, a connecting-rod, straps, wrist-pins, a pivot-head E on theconnecting-rod, and a driving-wheel eccentrically hung upon thedriving-shaft, with a vise having a stationary jaw, an adjustable jawpivoted to the base, a lever pivoted to the adjustable jaw, an adjusting-screw R, an arm extending to and operated by the driving-wheel,and an anti-friction roller, substantially as and for the purpose setforth.

5. The combination, in a saw-filing machine, of a base, boxes, shaft,pulleys, drivingwheel, feeding mechanism, carriage -frame,adjusting-screws and spring, carriage-track, file-carriage,adjusting-lever and eccentric, connecting-rod, and an automatic vise,with a saw-support consisting of a thin plate P an arm pivoted at oneend to the bed, the other end divided to pass each side of the vise andprovided with slots, and a clamping-screw, substantiallyas and for thepurpose set forth.

6. The combination, in a filing-machine, of a base, driving mechanism,feeding mechanism, carriage-frame, adjusting-screws and spring,adjusting-lever and eccentric, carriage, connecting-rod, automatic vise,and a file-support, with a saw-guide consisting of a shaft having a fiatstandard and a springguide, and a set-screw, substantially as and forthe purpose set forth.

7. The combination, in a saw-filing machine, of a base, drivingmechanism, feeding mechanism, an automatic vise, a saw-support,carriage-frame, and an eccentric upon the main shaft, with anadjusting-lever pivoted to the lug G with one end provided with aninclined surface 1' to act upon the adjusting screw 1' and the other endprovided with an anti-friction roller to act with the eccentric T,substantially as and for the purpose set forth.

8. The combination, in a saw-filing machine, of a base, drivingmechanism, feeding mechanism, a carriage-frame having adj ustingmechanism, a file-carriage, file-supports, an automatic vise, asaw-support and a sawguide with a connecting-rod pivotally attached ateach end to straps e and provided at one end with a bearing E consistingof a head having a long screw-body that is fitted to screw freely intothe end of the rod to form a free pivotjoint therewith, substantially asand for the purpose set forth.

9. The combination, in a saw-filing machine, of a base, drivingmechanism, feeding mechanism, an automatic vise, a carriage frame andtrack, adjusting mechanism therefor, a connecting-rod and afile-carriage, with a file-support consisting of hollow bearings uponthe carriage, annular plugs to fit into the hollow bearings, one of saidplugs having a flange larger than the opening, and a hollowadjusting-screw, substantially as and for the purpose set forth.

Signed at Grand Rapids, Michigan, this 27th day of September, 1890.

FRANK EDGE.

In presence of G. B. CoLEs, ITHIEL J. OILLEY.

